Client-Side Communication ActionScript > SharedObject.onSync

SharedObject.onSync

Availability

	Flash Player 6.
	Flash Communication Server MX.

Usage

myRemoteSharedObject.onSync = function(objArray)
{
	// Your code here
}

Parameters

objArray An array of objects; each object contains properties that describe the changed members of a remote shared object. (For more information, see "Description" below.)

Returns

Nothing.

Description

Event handler; initially invoked when the client and server shared object are synchronized after a successful call to SharedObject.connect, and later invoked whenever any client changes the attributes of the data property of the remote shared object. You must create a function to override this handler and process the information object sent by this event handler. The properties of each object are code, name, and oldValue.

When you initially connect to a remote shared object that is persistent locally and/or on the server, all the properties of this object are set to empty strings. Otherwise, Flash sets code to "clear", "success", "reject", "change", or "delete" as explained below.

	A value of "clear" means either that you have successfully connected to a remote shared object that is not persistent on the server or the client, or that all the properties of the object have been deleted—for example, when the client and server copies of the object are so far out of sync that Flash resynchronizes the client object with the server object. In the latter case, SharedObject.onSync is invoked again, this time with the value of code set to "change".
	A value of "success" means the client changed the shared object.
	A value of "reject" means the client tried unsuccessfully to change the object; instead, another client changed the object.
	A value of "change" means another client changed the object or the server resynchronized the object.
	A value of "delete" means the attribute was deleted.

The name property contains the name of the property that has been changed.

The oldValue property contains the former value of the changed property. This parameter is null unless code has a value of "reject" or "change".

To minimize network traffic, this method is not called when a client "changes" a property to the same value it currently has. That is, if a property is set to the same value multiple times in a row, this method is invoked the first time the property is set, but not during subsequent settings, as shown in the following example:

so.data.x = 15;
// The following line invokes onSync
so.data.x = 20;
// The following line doesn't invoke onSync, 
// even if issued by a different client
so.data.x = 20;

Example

// Create or get a remote shared object named 'position';
// nc is the NetConnection created earlier in code;
// false means do not make this a persistent shared object.
so = SharedObject.getRemote("position", nc.uri, false);

// Update ball position when another participant moves the ball;
// sharedBall_mc is a movie clip on the Stage.
so.onSync = function(list) {
		sharedBall_mc._x= so.data.x;
		sharedBall_mc._y= so.data.y;
}

// You must always call connect() in order to successfully
// connect to the shared object and share data.
so.connect(nc);

See also

SharedObject.data